On July 1, 1978 Pan American inaugurated eastbound round-the-world service
starting at Houston, TX and Mexico City, Mexico via New York ending at San
Francisco.
= = Mexico City, Mexico= = F18-475 = = = = = = = = = = = = = =!=!=!= =
= = Houston, TX= = = = = = F18-476 = = = =!=!=!=!=!=!=!=!= ! ! !
New York, NY - - - - - - - - - - - - ! ! ! ! ! ! ! ! - -a ! !
London, England- - - - - - - - - - - -a ! ! ! ! ! ! ! ! !
Frankfurt, Germany - - - - - - - - - - -b ! ! ! ! ! ! ! !
Tehran, Iran - - - - - - - - - - - - - - -c ! ! ! ! ! ! !
Bangkok, Thailand- - - - - - - - - - - - - -d ! ! ! ! ! !
Hong Kong- - - - - - - - - - - - - - - - - - -e ! ! ! ! !
Tokyo, Japan - - - - - - - - - - - - - - - - - -f ! ! ! !
Los Angeles, CA- - - - - - - - - - - - - - - - - -g ! - - -b !
= = San Francisco, CA= = = = = = = = = = = = = = = = = =!= = = = =!= =